o2 xphone always restart

[Guest gsmsoftware]

Dear Sir

i have O2 Xphone SP10 when i power on the phone always restart cant enter menu,some time can enter but sim error or missing but my sim card is ok.

please help me hoe can i repair or flash/format this phone,

please tell me the software and link to download

thanks for all help

best regards

gsmsoft

:roll: 8)